The What Works Clearinghouse (WWC) reviewed seven studies of the "Saxon Elementary School Math program." A distinguishing feature of "Saxon Elementary School Math" is its use of a distributed approach, as opposed to a chapter-based approach, for instruction and assessment. One of these studies met WWC standards with reservations and the remaining studies did not meet WWC evidence screens. This study found no discernible effects on mathematics achievement. The evidence presented in this report is limited and may change as new research emerges. Using school-level data provided by the authors, the WWC confirmed that "Saxon Elementary School Math" did not have a statistically significant or substantively important effect on math achievement at each grade level from first to fifth grade. Based on this study finding, the WWC categorized "Saxon Elementary School Math" as having no discernible effects on overall math achievement. (Contains 7 footnotes.) [This publication was produced by the What Works Clearinghouse. The following study is reviewed in this intervention report: Resendez, M., & Manley, M. A. (2005). "The relationship between using Saxon Elementary and Middle School Math and student performance on Georgia Statewide Assessments." Orlando, Fla.: Harcourt Achieve.]